I'am currently working on rewritting the ttree stuff. ttree is a variant record which stores the parse tree generated by the parser. Over the time ttree became a big mess, so we decided to rewrite it using a proper OOP structure. The goals of this rewrite are:
- cleaner program code
- make it easier to store the parse tree in a ppu file => inlining accross unit boundaries
- make it easier to port FPC to other processors. Most parts of FPC are already written in a way to support different target processors, but the biggest part, the node code generator is still missed and this will be the next step. If the current rewrite of the nodes is done, it shouldn't be hard to port FPC to other processors. My personal plans are to do an iA-64 port and maybe an Alpha port. Support of other processors depends if other people contribute/maintain such a port.

The current status is that all tc*.pas files are converted, but most of the n*.pas doesn't compile yet.
The next step is to convert the cg386*.pas files and get things running again :/